Question 1

How to set up MongoDB with EF Core in a .NET 8 application?

Accepted Answer

Use the UseMongoDB method in DbContext options, either directly with a MongoClient or via dependency injection. The README provides code examples for both approaches, including connection string handling and service configuration.

Question 2

MongoDB EF Core provider vs MongoDB C# driver, which is better?

Accepted Answer

Choose the EF Core provider if you want EF Core patterns like LINQ and DbContext; use the native C# driver for full MongoDB feature support or if you need unsupported EF features such as GroupBy or migrations, as noted in the Limitations.

Question 3

Does the MongoDB EF Core provider support transactions?

Accepted Answer

Yes, it supports auto-transactional SaveChanges for atomic commits, but requires MongoDB server 5.0+ in a transaction-enabled configuration, as specified in the Getting Started section.

Question 4

Can I use vector search with EF Core and MongoDB?

Accepted Answer

Yes, the provider includes VectorSearch extension methods on DbSet and fluent vector index configuration, allowing integration of MongoDB's vector capabilities directly into EF Core queries.

Question 5

What are the main limitations of the MongoDB EF Core provider?

Accepted Answer

Key limitations include no support for joins, GroupBy, migrations, geospatial queries, and bulk ExecuteUpdate/Delete operations. Refer to the README's Limitations section for a full list of unsupported features.

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